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INU1\ (DUAL SLWAk_,L l KLA 1 NlLi\ 1 5151 LM Vvl)Kh:111LLI
<br /> FLOW La/- L/ Estimated Sewage How in Gallons pc/ Ila'ierd)
<br /> A Estimated _-_1 -_-------__ gpdNumber
<br /> measured --- x _- __gpd Nk✓tie i`-- 5',....k..
<br /> r of Type I •1yPc II Type III Type Iv
<br /> Bedrooms
<br /> SEPTIC TANK VOLUME 2 300 225 18(1 --
<br /> B. aa_ Geo gallons
<br /> 3 450 la) 218
<br /> 4 600 175 256 me
<br /> 5 750 45)) 294 %alum
<br /> SOILS (Site evaluation data) 6 9111 525 "- .
<br /> 7 1050 600 170 other
<br /> C. Depth to restricting layer= 'i 3 feet 8 1200 675 408 column,
<br /> D. Maximum depth of system C- 3 ft = (, 3 feet
<br /> E. Texture 5'Ct s'7 1ODW Percolation rate/2.'f-A.5-MPI
<br /> F. SSF �j Number Minimum Minimum
<br /> J• 7 sq ft/gpd Septic lank capacity with
<br /> Of
<br /> Liquid
<br /> Bedrooms Capacity Disposal
<br /> (gallons) (gallons)
<br /> TRENCH BOTTOM AREA _ _
<br /> H. For trenches with 6 inches of rock below the pipe: 2 or less 750 1,125
<br /> A x F= x = sq ft of bottom area 3 oro 1.0(X) 1,500
<br /> I. For trenches with 12 inches of rock below the pipe: 5 or 6 7 ors 21,5(X) 3,00
<br /> ,0(() 3,000
<br /> A x F x 0.8= x x 0.8= sq ft of bottom area over 9 See fig.C-6 (x 1.5)
<br /> J. For trenches with 18 inches of rock below the pipe:
<br /> A x F x 0.66= x x 0.66= sq ft of bottom area soil Charactenstics&Required Area,kir Sewage treatment
<br /> K. For trenches with 24 inches of rock below the pipe: rerndanon Rah•
<br /> Minutes per Inch Solt-lexhlre 1 t,,,il,,r gitn.
<br /> A x F x 0.6= x x 0.6= sq ft of bottom area tmpd
<br /> BED BOTTOM AREA Faster than 0.1• Coarse Sand!
<br /> 0.1 to 5 Sand 0.83 1.20
<br /> L. For Gravity beds with 6 or 12 inches of rock below the pipe; 0.1 to 5 Fine Sand** 1.67 0.60
<br /> 6 to 15 Sandy Loam 1.27 0.79
<br /> 1.5 x A x F= 1.5 x x = sq ft of bottom area 16 to 30 Loam 1.67 0.60
<br /> For Pressure beds with 6 or 12 inches of rock below the pipe; 31 to 45 Silt Loam 2.00 0.50P 1' 46 to 60 Clav Loam 12.20 0.95
<br /> A x F= x = sq ft of bottom area Slower than 60-•• Clay (0.24)
<br /> ROCKVOLUME IN CU FT •soil too coarse for sewage treatment
<br /> Use systems for rapidly pernuable sods.
<br /> M. Rock depth below distribution pipe plus 0.5 foot times bottom area: ••sod having 50"7.or more of tne or very tine sand
<br /> M=Rock depth+6 inches x Area(H,I,J,L,K) SOHt ith aCagedfclay for
<br /> insstillationn of anningroun d standard system.
<br /> ( +0.5ft)x = cu ft
<br /> ROCK VOLUME IN CU YDS
<br /> N. Volume in cu ft divided by 27
<br /> M=27=cu yds _27= cu yds 6 inches= 0% Reduction*
<br /> ROCK WEIGHT 12 inches=20%Reduction
<br /> O. Cubic yards times 1.4= tons
<br /> N x 1.4 = tons x 1.4= tons 18:.inches= 34%o Reduction
<br /> 24 inches=40% Reduction
<br /> DISTRIBUTION *sizing for gravelless trench
<br /> (Check one based on slope) Bed(<6%slope)
<br /> Trenches✓ Drop boxes(any slope) Distribution box (< 3`%,)
<br /> SYSTEM LENGTH
<br /> P. Select width = ft ti•ti•%.h.h.ti„•ti•ti,ti•ti•ti•ti•ti•ti •
<br /> •fere(•(-r•r•r•r-r-r•r•r•r•r•r•,
<br /> Q. Divide bottom area by width: (H,I J, or K)-P= lineal feet I:V.i`r�r�•'`•Z•`•`•�•�•`'tie
<br /> r•r•r•r•r•r•r•r•r•r•. 2�Cover
<br /> ti•ti•ti•ti•ti•ti•ti•ti•ti•ti-ti•ti•ti•ti•ti
<br /> - = lineal feet •rtiftifti"ti ti"""e•r•r•.r•e.
<br /> 'f•r•r•r•r•f •�•r•r•r•r•,
<br /> Graveness Pipe ,"•,"f ,r•r•rti!
<br /> 'r•r•r•r.
<br /> •e-e.r...• tif.•ti•ti .
<br /> r•r•r•,
<br /> ( 10" :A x F T 3)= Lineal Feet(8" :A x F_2)= Lineal Feet rf:f f?f:• ;f;-i•ti-ti 4 mchPipe
<br /> r•r•r•
<br /> Chamber(A x F_width of chamber) ~•~•~•,
<br /> �f•r•r•r•r r:J.r.r•r•,
<br /> l•l•r•r•,
<br /> ti•t•%;%.;%t• ti•ti.ti•ti.ti•ti
<br /> f•rrrrr•r•r•r•r•r•r•r•rr•,
<br /> •67 x � __a__�l/8lineal feet .,-ti•,•ti.ti•ti•,-ti-ti•ti•ti•ti-ti•ti••.
<br /> �•r•r•r•r•r•r•r•r•r•r•r•r•r•r•,
<br /> LAWN AREA .•%•%•%•,•,..•%•%•%•%•%•••••%•%•_,:t.:%•%•,"',•,•„,•,•,•,"""•,
<br /> 'r.r-r•r-r.r.r.r-r-r.r-r.r.:.r.,
<br /> .t•t••••ti•ti•ti•ti•ti•ti• "-e.• .•••ti
<br /> ,r•r.r•r•r.r•r.r.r.r.r.r.r.r.r.
<br /> N. Select trench spacing,center to center = feet �•�•�•:•�•�•�•ti• •�•' ` '••� E.-29=oh
<br /> 'f•r•r•r•r•r•r.r•r•r.r.r.r.r•r.,
<br /> ti••.•ti•ti•ti•ti•ti•t•ti•ti•ti•ti•ti•ti-�
<br /> S. Multiply trench spacing b lineal feet R x Q = sq 'r•r•r•r-r-r• •r•r•r•r•:-r•:•:•,kOc1 Eebw ttr fr
<br /> .•ti•ti•ti•ti ti•1•ti•ti•ti•ti•'t•ti•'••ti•ti
<br /> V ft of lawn area r•r•r•r•r•r•r•r-r•r•:•r•:•:•r•,
<br /> 1i/a x 5-_ 2 ay ft ;fti?ti:ti: stifftiftir ;frtirss ,
<br /> ti,=ti=tititititi " f
<br /> LAYOUT(Use other side) :v: r•r•r•r•r-r•:•::_r•:•:
<br /> 1. Select an appropriate scale;one Square= feet-
<br /> 2.Show pertinent property boundaries, right-of-way,easements.
<br /> 3. Show location of house,garage, driveway,and all other
<br /> improvements, existing or proposed
<br /> 4. Show location and layout of sewage treatment system
<br /> 5. Show location of water supply well.
<br /> 6. Dimension all set backs and separation distances.
<br />
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